diff --git a/docs/release.md b/docs/release.md
index 9277b99d..b5f22722 100644
--- a/docs/release.md
+++ b/docs/release.md
@@ -20,7 +20,7 @@ jj git push --remote origin --bookmark main
 git push origin X.Y.Z
 ```
 
-`release:prepare` updates the version files and creates a `## Changes` release notes template. `release:preflight` verifies the local Jujutsu/Git state, release metadata, lockfile, and the same non-cached `npm run check:ci` validation used by CI after the release commit is on `main`.
+`release:prepare` updates the version files and creates a `## Changes` release notes template. `release:preflight` verifies the local Jujutsu/Git state, release metadata, API baselines, lockfile, and the same non-cached `npm run check:ci` validation used by CI after the release commit is on `main`.
 
 Release notes should normally include only user-facing changes. Internal implementation changes, validation details, and release procedure notes should be omitted when minor; when they are important enough to mention, group them into at most one concise bullet.
 
diff --git a/scripts/release/preflight.mjs b/scripts/release/preflight.mjs
index f72d3bd8..d0fe4ce3 100644
--- a/scripts/release/preflight.mjs
+++ b/scripts/release/preflight.mjs
@@ -86,6 +86,7 @@ if (maybeRun("jj", ["root"])) {
 }
 
 run("npm", ["run", "release:check"]);
+run("npm", ["run", "api:baseline"]);
 run("npm", ["ci", "--dry-run"]);
 run("npm", ["run", "check:ci"]);